+dri-devel@xxxxxxxxxxxxxxxxxxxxx
On 11/27/2017 11:57 AM, Sinan Kaya wrote:
> pci_get_bus_and_slot() is restrictive such that it assumes domain=0 as
> where a PCI device is present. This restricts the device drivers to be
> reused for other domain numbers.
>
> Getting ready to remove pci_get_bus_and_slot() function in favor of
> pci_get_domain_bus_and_slot().
>
> Extract the domain number from drm_device and pass it into
> pci_get_domain_bus_and_slot() function.
>
> Signed-off-by: Sinan Kaya <okaya@xxxxxxxxxxxxxx>
> ---
> drivers/gpu/drm/i915/i915_drv.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
> index 9f45cfe..5a8cb79 100644
> --- a/drivers/gpu/drm/i915/i915_drv.c
> +++ b/drivers/gpu/drm/i915/i915_drv.c
> @@ -419,7 +419,10 @@ static int i915_getparam(struct drm_device *dev, void *data,
>
> static int i915_get_bridge_dev(struct drm_i915_private *dev_priv)
> {
> - dev_priv->bridge_dev = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0));
> + int domain = pci_domain_nr(dev_priv->drm.pdev->bus);
> +
> + dev_priv->bridge_dev =
> + pci_get_domain_bus_and_slot(domain, 0, PCI_DEVFN(0, 0));
> if (!dev_priv->bridge_dev) {
> DRM_ERROR("bridge device not found\n");
> return -1;
>
--
Sinan Kaya
Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.
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